Supertanker has a great tie-in to dark matter arriving on Earth in a meteorite, but no explanation why it lasted on the ground for many years in contact with normal matter rather than exploding. However, it is the only movie I have seen which treats dark matter at all. I would like to see others, especially if they give a better discussion of the properties of dark matter and how dark matter can be handled.

On the other hand, there were problems with the technical aspects of film-making. There were some sequences where the film prints people into scenes and loses parts of them.

The most striking and egregious mistake I saw was scenes of a Pentagon press conference which showed two U.S. flags behind the presenter. One was right-side up and the other was upside down. How in the world did that EVER get past an editor? Perhaps a joker on the set crew?